Boiler.



F. Goff'. BOILEB.

APPLICATION FILED 00T. 4, 1912r Patented Oct. 28, 1913.

; RR w fg W-tnesses Inventor BoILE. APPLICATION FILED 00T. 4, 1912.

Patented Oct. 28, 1913.

2 SHEETS-SHEET 2.

Attorneys t UNITED STATES PATENT oEEIoE.

FRANK GORI, 0F

CAIDEN, NEW JERSEY, ASSIGINOB OF ONE-HALF T CLINTON l'.

SHEQDEB, OFCAHDEN, NEW JERSEY.

BOILER.

specification of Letters Patent. application neaocmber 4, 1912. semi No. 723,901.

Patented Oct. 28, 1913,

T0 all whom z't may concern:

Be it known that I, FRANK Gorr, a citizen ofthe United States, residing at Camden, in the county of Camden and State of New Jersey, have invented a new and usefu] Boiler, of which the following is a speciicat-ion. f

The present invention relates to improvements 1n boilers, the primary object ofthe invention being the provision of a novel form of boiler, in which the re box is provided with an exterior coil, and a concentrically disposed coil, into which the supply of water is primarily led, the same thus emg heated and steam delivered to super-l posed and concentric coils above the fire box, the coils in the boiler being especially designed fto cause the water and steam to follow a circuitous route before its final introduction into the radiators or other heating apparatus affected.

A further object of the present invention ils the provision of a novel form of mechanism whereby the water level within the boiler is maintained automatically, thus reduc' the danger of the burstingV of the coiln e to the too sudden reduction -of the water and introduction of cold water thereand themaximum heat unit when both boxes 'are employed for supplying the heat.

With the foregoing and other objects 1n view which .will appear as the description roceeds, the invention resides in the coini-nation and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can `be made within the scope of what is claimed without de artin-g from the spiritof the invention.

n the draWings--Figurelis a front elevation of a boiler with its supply tank in elevation.- Fig. y2 is a transverse vertical sectional view through the casin of the boiler andthe supply tank, the coi s constituting the lire box and the. combustion chamber being shown in elevation with the internal coils where necessary in dotted lines. Fig. 3 isv a section taken on .line 3-3 of Fig. 2. Fig. 4 is asection taken on line 4 4 of Fig. 2.- Fig. 5 is a section taken on line 5-5 of Fig. 2.

. Referring to the drawings, the numeral- 1 designates the outer casing of the boiler, which may be composed of sheet metal lined with an asbestos packing,.or a sheet metal alsv casing incased in asbestos as may be found desirable, said casing being provided with the clean out door 2, the fuel directing door 2', and the flue 3...v

.Disposed in the lower portion of the,

boiler above the ash pit A thereof, is a transverse bar/l, which carries the journaling stator 5 for the rece tion of the journal ing stud 6vof the circu ar rotary grate bar 6', the under surface ofthe grate bar near the eriphery thereof being rovided with the bevel gear teeth 7, whicliV times with the small bevel pinionI 8 moimted upon the crank shaft 9, said crank shaft 9 being disposed exteriorl ofthe casingtopermit of the rotation of t e circular grate bar' mesh at all when it is desired to precipitate .the ash within the ash pit.r`

An outer coil 10 of pipe, is provided with the inlet 11 at .the upper end thereof, andthe coils are disposed at such close proximity, as to provide an outer casing for the fire box of the boiler, the 4lower terminal 12 of said coil being disposed to project inwardly above the circular grate 6', and enter the lower end of the inner concentric coil 13, which extends upwardly and of approximately the same height as the coil 10, the coils 13 being disposed in close proximity to prevent the passage of the ash or coal retained therewithin Ainto the annular compartment formed between it andthe coil 10, while the coils l() as before stated are-'so close as to prevent the escape of the ash and coals exteriorly thereof. The upper 'end of theV coil 13 is provided with the outlet conduit 1.4, which extends over and in communication with the under side of the' open ring casing or water container 15, said container 15 ash pit A, where it may be removed through the door 2 as usual.

By reason of the fact that the respective chambers C-C, are composed of coils which contain the water initially supplied for heating purposes, it is evident that the greatest unit of heat possible is delivered to the coils'and consequently that when the water is delivered into the open ring casing 16, it. is above the boiling point and readily forms steam within the respective coils 18, and 22 which being super-heater coils increase the pressure of the steam so that the same is readily delivered to the radiators at the desired pressure. It is also evident that with a steam boiler as' herein set forth, and although it is especially designed for use inA connectionwith domestic heating systems, that the same may be used for generating steam for other purposes, and that by reason of the arrangement of the respective coils, steam is generated in -a rapid and economical marner and the supply of water to the boiler is made automatic, thus reducing the manual operation or attention of the boiler to a minimum.

What is claimed is:

1. In a boiler, an outer casing, two communicating water coils disposed to form an inner and outer fire box within the casing, a single grate forming the bottom of both lire boxes, a separator casing in direct communication with one of the coils, and approximately above the outer coil, and a plurality of communicating super-heating coils above and in direct communication w1th the separator casing.

2. A boiler having a fire box composed of two spaced sets of coils in communication with each other, a plurality of communicating su er-heating coils located above the two space sets of .coils, a separator casing interposed between the s aced' coils and the super-heating coils and iorming a communieating connecting medium therebetween, a

steam supply conduit leading from the super-heating coils, and a casing surrounding all coils and the separator casing.

3. A boiler, having an outer casing, two concentrically disposed coils in the lower `end of the casing, portions of said coils being disposed in close proximity to provide two concentric non-communicating compartments, both of said coils .being in communication with' each. other; ,a separator casing in direct communication with one o'f the coils at the u per end thereof, sai-d casing being directly y a ove the outer coil; a lurality of concentrically disposed supereatin coils in the upper end of the casing, one o said coils being in communication with the separator casing,'a steam dome in the u er end vof the casing in communication wit the outlet of .disposed in the lower coils being in communication with each other, an open ring separator casing disposed above and approximately in line with the outer coil and in communication with the upper end of the inner coil, a plurality of concentrically disposed super-heating coils mounted above the separator casing, the lower end Vof the outer coil being in communication with the separator casing, said coils being in communication with each other, a steam dome in communication withthe upper end of the inner super-heating coil, whereby the water enters'the two concentrically disposed coils and iows into the separator casing, which constitutes with the upper super-heatin coils and the steam dome a receptacle or the steam generated primarily in the lower coils and the separator casing, the outer casing surrounding the super-heating coils, separator casing and the concentric coils, a steam supply conduit leading from the steam dome, and a condensation ret-urn conduit also in communication with the steam dome.

5. A boiler including an outer casin two communicating concentrically dispose coils ortion of the boiler casing adjacent the {Eirebox thereof, the outer coil provided at its top with a water supplying inlet, the inner coll being 1n communication with the outer coil at and from the lower end thereof, an open ring separator casing of substantially the same diameter as the outer coil dlsposed above the outer coil and in communication with the inner coil, three concentrically disposed coils mounted in the upper portion of the boiler above the separator casing, the outer coil of which is in communication with the separator casing, and the central coils of which are in communication with each other y and the outer coil a steam dome mounted in the top of the boiler and in'communication with the inner `concentric coil, and a condensation return pi'pe in communication with the steam dome.

In testimony that I c1a1m the foregoing as my own, I have hereto affixed my 'slgnature in the presence of two wltnesses.

FRAN): GOFF. Witnesses i BoY'roN ADAMS, F. G. Toluna. 

